Only 33 weeks and baby already weighing 6lbs😧 Help!

So I went for my prenatal check up and when Doctor measured my stomach she said it was measuring too big so she decided to do an ultrasound to confirm. Well according to the measurements my baby is already weighing 6lbs 4oz and I still have 7 more weeks to go!! Now I have to see a specialist to see what he reccomends! Anybody else been through something similar? Im soo nervous😧😞